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comparison src/share/vm/prims/jvmtiImpl.hpp @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents d2a62e0f25eb
children fb19af007ffc
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
162 // Note: Extends GrowableElement for use in a GrowableCache 162 // Note: Extends GrowableElement for use in a GrowableCache
163 // 163 //
164 // A JvmtiBreakpoint describes a location (class, method, bci) to break at. 164 // A JvmtiBreakpoint describes a location (class, method, bci) to break at.
165 // 165 //
166 166
167 typedef void (methodOopDesc::*method_action)(int _bci); 167 typedef void (Method::*method_action)(int _bci);
168 168
169 class JvmtiBreakpoint : public GrowableElement { 169 class JvmtiBreakpoint : public GrowableElement {
170 private: 170 private:
171 methodOop _method; 171 Method* _method;
172 int _bci; 172 int _bci;
173 Bytecodes::Code _orig_bytecode; 173 Bytecodes::Code _orig_bytecode;
174 oop _class_loader;
174 175
175 public: 176 public:
176 JvmtiBreakpoint(); 177 JvmtiBreakpoint();
177 JvmtiBreakpoint(methodOop m_method, jlocation location); 178 JvmtiBreakpoint(Method* m_method, jlocation location);
178 bool equals(JvmtiBreakpoint& bp); 179 bool equals(JvmtiBreakpoint& bp);
179 bool lessThan(JvmtiBreakpoint &bp); 180 bool lessThan(JvmtiBreakpoint &bp);
180 void copy(JvmtiBreakpoint& bp); 181 void copy(JvmtiBreakpoint& bp);
181 bool is_valid(); 182 bool is_valid();
182 address getBcp(); 183 address getBcp();
183 void each_method_version_do(method_action meth_act); 184 void each_method_version_do(method_action meth_act);
184 void set(); 185 void set();
185 void clear(); 186 void clear();
186 void print(); 187 void print();
187 188
188 methodOop method() { return _method; } 189 Method* method() { return _method; }
189 190
190 // GrowableElement implementation 191 // GrowableElement implementation
191 address getCacheValue() { return getBcp(); } 192 address getCacheValue() { return getBcp(); }
192 bool lessThan(GrowableElement* e) { Unimplemented(); return false; } 193 bool lessThan(GrowableElement* e) { Unimplemented(); return false; }
193 bool equals(GrowableElement* e) { return equals((JvmtiBreakpoint&) *e); } 194 bool equals(GrowableElement* e) { return equals((JvmtiBreakpoint&) *e); }
194 void oops_do(OopClosure* f) { f->do_oop((oop *) &_method); } 195 void oops_do(OopClosure* f) {
196 // Mark the method loader as live
197 f->do_oop(&_class_loader);
198 }
195 GrowableElement *clone() { 199 GrowableElement *clone() {
196 JvmtiBreakpoint *bp = new JvmtiBreakpoint(); 200 JvmtiBreakpoint *bp = new JvmtiBreakpoint();
197 bp->copy(*this); 201 bp->copy(*this);
198 return bp; 202 return bp;
199 } 203 }
281 void oops_do(OopClosure* f); 285 void oops_do(OopClosure* f);
282 void print(); 286 void print();
283 287
284 int set(JvmtiBreakpoint& bp); 288 int set(JvmtiBreakpoint& bp);
285 int clear(JvmtiBreakpoint& bp); 289 int clear(JvmtiBreakpoint& bp);
286 void clearall_in_class_at_safepoint(klassOop klass); 290 void clearall_in_class_at_safepoint(Klass* klass);
287 void clearall(); 291 void clearall();
288 void gc_epilogue(); 292 void gc_epilogue();
289 }; 293 };
290 294
291 295